Originally Posted by shivaswrath
Has anyone pioneered one of these yet? I saw that they do this over with the M3 guys...we would clearly gain QUITE a bit from this.
Hell, I would have it installed right before the DP, or possibly in the DP, so when you're on the track, it's FULL RELEASE!!!
In a week i will be welding in a boost activated cutout right after my catless DP